Date of Publication :23rd March 2023

Abstract: In this research, a hydrothermally synthesized core-shell structured magnetic mesoporous nanocomposite was modified by 3-aminopropyltriothoxysilane (APTES) as an amine function on the surface nanocomposite and used to remove Alizarin Red S as an anionic dye from aqueous. SEM, FT-IR, XRD, and TEM were used to characterize this nanocomposite. The main parameters that were effective in removing synthesis dye, such as vortex, time, amount of adsorbent, and dye concentration were enhanced using Central Composite Design (CCD) under Response Surface Methodology (RSM). For ARS, 224.21 mg g-1 of maximum sorption capacity was found. The equilibrium data fitted to isotherm models revealed that the Langmuir model had the highest R² value of 0.9895. Several kinetics models were examined for the optimum model after it was demonstrated that a monolayer of dye forms on the surface of an adsorbent. The findings suggested that the best model for the adsorption rate had an R² of 0.9909.

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